Preparation of expert opinions

Since 2009, the team of dence has been preparing expert opinions in the fields of information technology, software and digital forensics for German and international clients - both official and private. The aim of an expert investigation is the independent examination of the issues raised by the client.

The expert examination is generally divided into the following steps:

  • Initial consultation by phone or by e-mail (free of charge)
  • Commissioning of project
  • Identification and seizure of all relevant and known evidence (digital, but also printed copies of digital documents such as emails, screenshots, etc.)
  • Analysis and examination of the evidence (possibly, identification and seizure of additional sources of evidence)
  • Preparation of a analysis opinion or expert opinion
  • Presentation of the expert opinion in court on request

Whether you need a short protocol, an informative analysis report or a comprehensive expert opinion - we will provide a customised, court-proof and professional answer to your questions. For new types of digital artefacts, we develop individual analysis software according to your needs.

Our investigations focus on the following technical areas:

  • Information technologies (software and hardware)
  • Software development and programming techniques
  • Desktop, mobile and online applications
  • Distributed systems, cloud computing and cloud storage
  • Databases
  • Reverse engineering
  • Digital forensics / computer forensics / IT-forensics
  • Analysis of stationary and mobile devices / computer networks

Special expertise in the area of digital forensics

With our forensics services, we guide you safely through the labyrinth of digital traces and relieve you of the burden of identifying, securing and analysing them. We specialise in the following forensics topicst:

Possible traces during a digital forensics investigation

Multimedia forensics (image forensics / video forensics / audio forensics)

  • Authentication of all types of media data (images, videos, audio recordings, digital documents) with our patented forensics authentication technology
  • Checking the originality of digital media data
  • Manipulation detection of the perceivalbe content or the included auxilliary data in a media file
  • Determining the origin of a digital media file (Which device or software was employed to create a file?)
  • Checking the existence, completeness and originality of auxiliary information / metadata (such as acquisition time and location)
  • Plausibility check (comparison between context information, media file content and known sequence of events of a case)

Forensics for cryptocurrencies

  • Tracing cryptocurrency transactions, e.g., Bitcoin or Ethereum
  • Identification of payees
  • Analysis of cryptocurrency wallets
  • Analysis / validation of source code of cryptocurrencies and smart contracts
  • Analysis of concealment techniques / mixing service providers
  • Tracing cryptocurrency payments in case of fraud

Open source intelligence (OSINT)

  • Seizure and analysis of traces on public / private websites and in the Internet
  • Identification of related / similar Internet presences
  • Identification of Internet users

Drone forensics and forensics for radio signals

  • Identification / localisation of drones
  • Video and flight data extraction
  • Analysis and decoding of radio signals